AI Share of Voice for Local Businesses: How to Measure If You Show Up in ChatGPT, Perplexity, and Gemini

Traditional share of voice is straightforward: what percentage of advertising, mentions, or search results belong to you versus your competitors? AI share of voice works the same way, but the medium changed.

When someone types a question into ChatGPT, Perplexity, or Gemini, the AI generates an answer that names specific businesses. Your AI share of voice is the percentage of those answers that include you.

Run 10 relevant queries across AI engines - things like best dentist near me, top-rated med spa in Charlotte, or reliable HVAC company in Dallas. If your business shows up in 3 of those 10 answers, your share of voice is 30%. If you show up in none, it is zero.

That number is your baseline. Everything else is about moving it up.

You do not need software to get your first data point. Open ChatGPT, Perplexity, and Gemini right now and type the exact question your best customers would ask.

For a dentist: what is the best family dentist in [your city]? For a restoration company: who should I call for water damage in [your city]? For a med spa: top-rated med spas near [your neighborhood].

Note which businesses get named. Note which ones get described in detail versus mentioned in passing. Note whether yours is anywhere in the results.

That is your manual audit. It gives you a real picture of where you stand today - not a projection, not an estimate, the actual current state.

The catch is doing this consistently. Once a week, across three engines, for multiple query variations, then tracking changes over time. That is where manual falls apart.

ChatGPT, Perplexity, and Gemini are not reading the same internet. Each has its own crawling behavior, source weighting, and update cadence. A business that dominates Perplexity results may not appear in ChatGPT at all.

Perplexity leans heavily on real-time web search and cites sources directly. ChatGPT draws from its training data plus web browsing when enabled. Gemini integrates deeply with Google's own index and Maps data.

This matters because your customers are not all using the same tool. A patient searching for a dentist might use one engine. Their coworker uses a different one. You need visibility across all three, not just whichever one you happened to test.

Optimizing for one engine without tracking the others means you have an incomplete picture - and you might be losing leads you never knew were looking.

The manual method works for a snapshot. It breaks down as a system.

AI results change constantly. A new competitor starts getting mentioned. An algorithm update shifts weighting. You publish new content and it starts getting cited. You need to know when these things happen - not six months later when you notice the phone stopped ringing.

Tracking weekly across three engines, for multiple query variations, then comparing this week to last week and last month, requires either a dedicated process or tooling that does it for you.

Most local businesses do not have that process. They check once, note they are not showing up, and have no baseline to measure improvement against. That means they cannot tell whether the work they are doing is helping.

Measurement is not the goal. Better numbers are. But without consistent measurement, you are flying blind.

OptimizeMyGEO runs automated weekly queries against ChatGPT, Perplexity, and Gemini, using the kinds of questions your customers actually ask. It tracks which queries name you, which do not, and how that changes over time.

The score you see in your OMG dashboard is per-engine, not a blended average. You will see your ChatGPT visibility score, your Perplexity score, and your Gemini score separately - because a blended number hides where the actual gaps are.

You also see competitor data. If a competitor started appearing in answers where they were not last week, you know. If your own mentions increased after publishing new content, you see the correlation.

The Starter plan at $99 per month covers the core tracking across major AI engines. The Pro plan at $249 per month adds deeper query coverage and more competitor tracking. Both start with a free one-time audit so you have a real baseline before committing.

There is no universal benchmark because it depends entirely on your market and competition. A 30% share of voice in a city with two competitors is different from 30% in a city with twenty.

A few useful reference points: showing up in fewer than 20% of relevant queries in your category is a strong signal that AI engines are not reliably recommending you. Above 50% in a competitive market is genuinely strong. The exact numbers matter less than the trend and how you compare to the competitors you care about.

The more useful question is not what is a good number but what is your number today, and is it going up. If you have no data, you have no answer to either question.

That is why the starting point is always measurement, not optimization. You cannot improve what you are not tracking.

The free audit at optimizemygeo.com runs your business against live AI queries right now and shows you where you stand across ChatGPT, Perplexity, and Gemini.

It takes a few minutes to set up. You get a real score, not an estimate. You see which queries name you and which do not. You see competitor comparisons.

From there you have a choice: track it yourself manually using the approach above, or let OMG track it weekly and surface the changes automatically.

Either way, you need the baseline first. Start with the free audit and you will know exactly where you stand.